[Geotools-devel] [JIRA] (GEOT-5224) ArcGrid Extension does not support binary ArcGrid format

Torben Barsballe (JIRA) Thu, 24 Sep 2015 10:35:41 -0700

Title: Message Title

Torben Barsballe created an issue

GEOT-5224

Issue Type:	Improvement
Assignee:	Unassigned
Components:	arcgrid plugin
Created:	24/Sep/15 7:32 PM
Priority:	Medium
Reporter:	Torben Barsballe

The gt-arcgrid plugin does not support ADF (Arc/Info Binary Grid), not ASC (Arc/Info ASCII grid) files.
If you try to add an ADF ArcGrid file (eg. by adding an ArcGrid store in GeoServer), you get the following error:

 
                                                    java.lang.RuntimeException: org.geotools.data.DataSourceException: Unable to parse the header for the provided input
  at org.geotools.gce.arcgrid.ArcGridFormat.getReader(ArcGridFormat.java:174)
  at org.geotools.gce.arcgrid.ArcGridFormat.getReader(ArcGridFormat.java:47)
  at org.geoserver.catalog.ResourcePool.getGridCoverageReader(ResourcePool.java:1441)
  at org.geoserver.catalog.ResourcePool.getGridCoverageReader(ResourcePool.java:1369)
  at org.geoserver.catalog.impl.CoverageStoreInfoImpl.getGridCoverageReader(CoverageStoreInfoImpl.java:59)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:606)
  at org.geoserver.catalog.impl.ModificationProxy.invoke(ModificationProxy.java:146)
  at com.sun.proxy.$Proxy86.getGridCoverageReader(Unknown Source)
  at org.geoserver.web.data.layer.NewLayerPageProvider.getItemsInternal(NewLayerPageProvider.java:90)
  ... 118 more
Caused by: org.geotools.data.DataSourceException: Unable to parse the header for the provided input
  at org.geotools.gce.arcgrid.ArcGridReader.<init>(ArcGridReader.java:186)
  at org.geotools.gce.arcgrid.ArcGridFormat.getReader(ArcGridFormat.java:170)
  ... 129 more
Caused by: java.lang.IllegalArgumentException: Unable to parse the header for the provided input
  at it.geosolutions.imageio.plugins.arcgrid.AsciiGridsImageReader.setInput(AsciiGridsImageReader.java:287)
  at org.geotools.gce.arcgrid.ArcGridReader.<init>(ArcGridReader.java:167)
  ... 130 more
Caused by: java.io.IOException: This file is not a valid ESRI ascii grid file.
  at it.geosolutions.imageio.plugins.arcgrid.raster.GrassAsciiGridRaster.parseHeader(GrassAsciiGridRaster.java:202)
  at it.geosolutions.imageio.plugins.arcgrid.AsciiGridsImageReader.setInput(AsciiGridsImageReader.java:282)
  ... 131 more
 
                                                

Looking at the code, it is clear that only ASCII ArcGrid is intended to be supported, but the advertised info does not represent this;

 
                                                    "name", "ArcGrid"
"description", "Arc Grid Coverage Format"
"vendor", "Geotools"
"docURL", "http://gdal.velocet.ca/projects/aigrid/index.html"
"version", "1.0"
 
                                                

This info should be updated to show this (such that this limitation can be reflected in downstream applications such as GeoServer).

In the future, the binary ArcGrid should be supported (perhaps as a new format as part of the GDAL formats?), but for now, we should at least advertise that it is not.

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[Geotools-devel] [JIRA] (GEOT-5224) ArcGrid Extension does not support binary ArcGrid format

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